Question

Identify the identities from the following by replacing the variables with the values 0, 1, 2 and 3.

(2) y − 3 = 7

Answer 1

y − 3 = 7
Substitute y = 0
LHS : y − 3
= 0 − 3
= −3
RHS : 7
As LHS ≠ RHS,
y − 3 = 7 is not an identity.